This Order (under s.269P of the Customs Act 1901) declares that specific gear assemblies for blast furnace hoppers — pinion drive gears and toothed wheels classified at 8483.40.90 — are goods to which item 50 in Part III of Schedule 4 to the Customs Tariff Act 1995 applies, effective 21 July 2011 until revoked (s.269SC/s.269SD). Importers or manufacturers of those parts can rely on the Schedule 4 concession if customs classification and eligibility are met; the concession reduces tariff cost for eligible imports.